Pith Number

pith:2TNIWMAU

pith:2006:2TNIWMAUUBYBPPSCOSIJMVLJWG

not attested not anchored not stored refs pending

Characterizing multiparticle entanglement in symmetric N-qubit states via negativity of covariance matrices

A. K. Rajagopal (2)(Department of Computer Science, A. R. Usha Devi (1), Bangalore University.), Center for Quantum Studies, George Mason University, Inspire Institute Inc., McLean.), R. Prabhu (1)(Department of Physics

arxiv:quant-ph/0609055 v3 · 2006-09-07 · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2TNIWMAUUBYBPPSCOSIJMVLJWG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T17:03:33.621205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4da8b3014a07017be427490965569b1acb7fd94bfd14f52bc38c39c8e6c65ed

Aliases

arxiv: quant-ph/0609055 · arxiv_version: quant-ph/0609055v3 · doi: 10.48550/arxiv.quant-ph/0609055 · pith_short_12: 2TNIWMAUUBYB · pith_short_16: 2TNIWMAUUBYBPPSC · pith_short_8: 2TNIWMAU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2TNIWMAUUBYBPPSCOSIJMVLJWG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d4da8b3014a07017be427490965569b1acb7fd94bfd14f52bc38c39c8e6c65ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4918334cb3d5a465aae781a85e6114b431f757a17387bb84b17308a85e28e70a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-09-07T05:51:42Z",
    "title_canon_sha256": "40ca7f35fcde822d181314610ee24f0ecbadfbe4accb16f0fbdca4d18f12a921"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0609055",
    "kind": "arxiv",
    "version": 3
  }
}